网络拓扑发现程序；可以发现校园网内三层交换机以下的所有局域网和主机，并以图形的方式显示给客户。-Network topology discovery process can be found within the three-campus network following all local area network switches and host, and graphics display to the customer.

此简单NS2tcl程序实现两节点的的数据传输，当运行时会产生tr文件追踪包数据且会产生nam模拟文件，模拟网络的拓扑结构-This easy NS2 tcl program could realise two nodes topu s package trasmission.Meanwhile the running of the program could generate nam and tr files.

根据网络流量文件，统计各节点流量，并绘画全网访问流量拓扑图，流量前6名红色标记。网络编程参赛作品。-Depending on the network traffic documents, each node traffic statistics, and painting the entire network topology traffic flow before 6 red marker